Scaling Law for the Onset of Solidification under Quasi-Isentropic Compression

ORAL  · Invited

Abstract

Quasi-isentropic compression enables one to study the solidification of metastable liquid states that are inaccessible through other experimental means. The onset of this nonequilibrium solidification is known to depend on the compression rate and material-specific factors, but this complex interdependence has not been well characterized. This talk will discuss recent studies in which we have used a combination of experiments, theory, and computational simulations to derive a general scaling law that quantifies this dependence. One of its applications is a novel means to elucidate melt temperatures at high pressures. We give suggestions on future studies to test and further refine the scaling law.

*This work was performed under the auspices of the U.S. Department of Energy (DOE) by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344. Sandia National Labs is managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the DOE’s National Nuclear Security Administration (NNSA) under Contract No. DE-NA0003525. We thank the DOE/NNSA for program support from the Laboratory Residency Graduate Fellowship under cooperative agreement number DE-NA0003960 and the LLNL-LDRD Program under Project No. 21-SI-006.

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Publication: 1. "Scaling Law for the Onset of Solidification at Extreme Undercooling", Philip C. Myint, Dane M. Sterbentz, Justin L. Brown, Brian S. Stoltzfus, Jean-Pierre R. Delplanque, and Jonathan L. Belof, Phys. Rev. Lett., 131, 106101, 2023.
2. "Kinetics of solidification in metals under rapid compression: experiments, theory, and simulations applied to gallium", Jonathan L. Belof, Justin L. Brown,Philip C. Myint, and Brian S. Stoltzfus, in preparation.

Presenters

  • Dane M Sterbentz

    • Lawrence Livermore National Laboratory

Authors

  • Philip C Myint

    • Lawrence Livermore Natl Lab

  • Dane M Sterbentz

    • Lawrence Livermore National Laboratory

  • Justin L Brown

    • Sandia National Laboratories

  • Brian S Stoltzfus

    • Sandia National Laboratory

  • Jean-Pierre Delplanque

    • University of California, Davis

  • Jonathan L Belof

    • Lawrence Livermore National Laboratory